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83 lines
2.6 KiB
83 lines
2.6 KiB
4 years ago
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from typing import Iterable, List
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from . import get_console
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from .segment import Segment
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from .terminal_theme import DEFAULT_TERMINAL_THEME
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JUPYTER_HTML_FORMAT = """\
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<pre style="white-space:pre;overflow-x:auto;line-height:normal;font-family:Menlo,'DejaVu Sans Mono',consolas,'Courier New',monospace">{code}</pre>
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"""
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class JupyterRenderable:
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"""A shim to write html to Jupyter notebook."""
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def __init__(self, html: str, text: str) -> None:
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self.html = html
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self.text = text
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def _repr_mimebundle_(self, include, exclude, **kwargs):
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data = {"text/plain": self.text, "text/html": self.html}
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if include:
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data = {k: v for (k, v) in data.items() if k in include}
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if exclude:
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data = {k: v for (k, v) in data.items() if k not in exclude}
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return data
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class JupyterMixin:
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"""Add to an Rich renderable to make it render in Jupyter notebook."""
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def _repr_mimebundle_(self, include, exclude, **kwargs):
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console = get_console()
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segments = list(console.render(self, console.options)) # type: ignore
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html = _render_segments(segments)
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text = console._render_buffer(segments)
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data = {"text/plain": text, "text/html": html}
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if include:
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data = {k: v for (k, v) in data.items() if k in include}
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if exclude:
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data = {k: v for (k, v) in data.items() if k not in exclude}
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return data
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def _render_segments(segments: Iterable[Segment]) -> str:
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def escape(text: str) -> str:
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"""Escape html."""
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return text.replace("&", "&").replace("<", "<").replace(">", ">")
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fragments: List[str] = []
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append_fragment = fragments.append
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theme = DEFAULT_TERMINAL_THEME
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for text, style, control in Segment.simplify(segments):
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if control:
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continue
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text = escape(text)
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if style:
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rule = style.get_html_style(theme)
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text = f'<span style="{rule}">{text}</span>' if rule else text
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if style.link:
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text = f'<a href="{style.link}">{text}</a>'
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append_fragment(text)
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code = "".join(fragments)
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html = JUPYTER_HTML_FORMAT.format(code=code)
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return html
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def display(segments: Iterable[Segment], text: str) -> None:
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"""Render segments to Jupyter."""
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from IPython.display import display as ipython_display
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html = _render_segments(segments)
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jupyter_renderable = JupyterRenderable(html, text)
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ipython_display(jupyter_renderable)
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def print(*args, **kwargs) -> None:
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"""Proxy for Console print."""
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console = get_console()
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return console.print(*args, **kwargs)
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